Dimethylformamide → HCID 12274184, compound

Participants

Reaction Steps

To a mixture of 25 g of 7-bromomethyl-5-oxo-5H-[1]benzopyrano-[2,3-b]pyridine and 175 ml of dimethylformamide is added 5.1 g of sodium cyanide under ice cooling. The mixture is stirred at room temperature for 2 hours, and then 300 ml of water is added to the reaction mixture. The resulting crystalline precipitate is filtered off, washed with water, and recrystallized from dioxane to give 17 g of 7-cyanomethyl-5-oxo-5H-[1]-benzopyrano[2,3-b]pyridine melting at 198°-201°C.

Provenance & Evidence